ZIGONG WEITE VALVE MFG CO., LTD
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3 Pieces WCB Trunnion Mounted Ball Valve 10'' 600LB Carbon Steel
Product Description
Trunnion Mounted Ball Valve reliable, robust design with many standard features, including a bleed valve for double block
and bleed capability as well as injection fitting for valve lubrication.
Trunnion Mounted Ball Valve Test Procedure
| HYDROSTATIC SEAL TEST API 6D 10.3 and 10.4 | ||||||
| Sequence | Area Pressure | Duration(min) | Description | |||
| SHELL TEST | A | 1.5xPN | 6″-10″ | 5 | 1. Valve in partial open.
| |
| B | 1.5xPN | 12″-18″ | 15 | |||
| C | 1.5xPN | 20″-60″ | 30 | |||
| SEAT TEST | A | 1.1xPN | 5 | Seat hydrostatic seal at A end towards body B | ||
| B | Atmospheric | |||||
| C | Atmospheric | |||||
| A | Atmospheric | 5 | Seat hydro seal at C end towards body B | |||
| B | Atmospheric | |||||
| C | 1.1xPN | |||||
| A | 1.1xPN | 5 | Seat hydro seal test for both A and C | |||
| B | Atmospheric | |||||
| C | 1.1xPN | |||||
| AIR SEAL TEST API 6D 10.4 | ||||||
| SEAT TEST | A | Atmospheric | 5 | Seat air seal test at A end towards body B | ||
| B | Atmospheric | |||||
| C | 80PSLG(5.5bar) | |||||
| A | 80PSLG(5.5bar) | 5 | Seat air seal test at C end towards body B | |||
| B | 80PSLG(5.5bar) | |||||
| C | Atmospheric | |||||
Weite Valve
Zigong Weite Valve Mfg Co., Ltd. is is a collection of R & D, production, sales, design and manufacturing, international
trade in one of the enterprises, product quality is stable, strong technical strength, well received by customers.
